Money Big IRS backlog: Months after filing their taxes, some still wait for a refund July 5, 2020Russ Wiles, Arizona RepublicComments Off on Big IRS backlog: Months after filing their taxes, some still wait for a refund As of April 17, the original filing deadline, the IRS had processed 24 million fewer returns than it had last year, the Taxpayer Advocate Service said